#153443
Closest named color: Midnight Green (#073B4C). oklch(30.9% 0.045 231.8), rgb(21, 52, 67).
Aa
White text reads best on this color (13.09:1).
About this color
#153443 is a dark, muted blue. In OKLCH its lightness is 31%, its chroma 0.045 and its hue 232°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.025 away. White text reads best on it, at 13.09:1.
| Hue family | Blues |
| Lightness | dark (31%) |
| Chroma | muted (0.045) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.60:1 |
| White text | 13.09:1 |
Values
| HEX | #153443 |
| RGB | rgb(21, 52, 67) |
| HSL | hsl(200, 52%, 17%) |
| OKLCH | oklch(30.9% 0.045 231.8) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #153443 | 13.09:1 | AAA | Lc -102.5 | Preferred for body text |
| Black text on #153443 | 1.60:1 | Fails | Lc 0.0 | Not readable |
| #153443 text on white | 13.09:1 | AAA | Lc 99.2 | Preferred for body text |
| #153443 text on black | 1.60:1 | Fails | Lc 0.0 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 950.
-
Step 50
50
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E0ECF3
oklch(93.6% 0.016 233)
-
Step 200
200
#C6DDEA
oklch(88.4% 0.03 232.5)
-
Step 300
300
#9EC7DE
oklch(80.8% 0.054 232.9)
-
Step 400
400
#66AACD
oklch(70.6% 0.086 232.2)
-
Step 500
500
#3394C0
oklch(63% 0.11 232.2)
-
Step 600
600
#007EAA
oklch(55.7% 0.113 231.8)
-
Step 700
700
#006A8F
oklch(49.2% 0.1 231.3)
-
Step 800
800
#005676
oklch(42.6% 0.087 232.3)
-
Step 900
900
#0A4861
oklch(37.8% 0.072 231.5)
-
Step 950
950 (this color)
#153443
oklch(30.9% 0.045 231.8)
#153443 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #2D3344 | 0.031 |
| Deuteranopia (no green cones) | #262E43 | 0.027 |
| Tritanopia (no blue cones) | #003839 | 0.030 |
| Achromatopsia (no color) | #313131 | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #153443
#153443
oklch(30.9% 0.045 231.8)
- #42291A
#42291A
oklch(30.8% 0.045 51.3)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #153443, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.025
- Gunmetal #293241 ΔE 0.025
- Dark Blue Grey #1F3B4D ΔE 0.030
- Space Cadet #2B2D42 ΔE 0.035
- Prussian Blue #1D3557 ΔE 0.038
- Oxford Blue #1B263B ΔE 0.046
- Onyx #343A40 ΔE 0.049
- Dark #1B2431 ΔE 0.056
Use #153443 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.